Fireplace



June 10, 1930. E. BURG 1,762,505

FIREPLACE Filed 001;. 25. 1927 2 Sheets-Sheet 1 June 10, 1930. BURG 1,762,505

FIREPLACE Filed Oct. 25. 1927 V 2 Sheets-Sheet 2 uys? 66 WM 5;, jib-rug operating member.

untran- STATES PATENT OFFICE EUGEN. BURG, or ESSEN, GERMANY FIREPLACE Application fifed October 25, 1927," Serial No.

My invention relates to improvements in fire places, and more particularly in fi re places for the combustion of powderous' fuel, in which the combustion takes place within acombustion chamber provided in connectionwith the chamber'toloe heated,and in which secondary air is admitted through. passages made in the Wall of the combustion chamber; The object of the improvements is to provide a fire place of this type in which the said passages are constructed sotha't they can be varied in cross-sectional area for adapting the same to varying conditions, and more particularly to the heat t'o be developed and It" the temperature of the air. Inthe preferred construction of the fire place the: regulating means fora part of the said passages enter allthe said passages are connected toacommon In one embodiment of the invention the passages are provided between blocks orbricks of retractory material adapted to be moved relatively to each: other for varying the passagesprovided between adjacent blocks or bricks, and suchdisplacementof the blocks or bricks may bebrought about for example by making the bricks or blocks or by shifting the same in radialor substantially radial: direction.

For the purpose of explaining the inven tion two examples embodying the same have been-shown in the accompany-mgdrawingsin which the same letters of reference li'ave'been used in all the views to indicate corresponding parts. In said drawings,

Fig. 1, is a sectional elevationtaken on the line 11 of Fig. 2 and showing the combustion chamber,

Fig. 2, is a sectional elevation taken-on the line 2+2 of Fig. 1,

Fig. 3, is a sectional elevationtaken on the line 33 of Fig. 4 and: showing a modification of the fire place, and

Figfiv l, is a sectional elevation taken" oirthe line H of Fig. 3. l 4 5 In the example! shown in Figs.-11and 2 the fire placecomprises a chambei y' which is to be heated by the powderous fuel; a cylindrical combustion chamber olocated in front oirthe preferred:construction, .thesaid burner-"being 228,545, and in' Germany November l, 192s.

otherat the end faces thus providing radial or substaintiallyradial passages t. The rings of blo'clis' or bricks are surl 'oundedbya jacket 0 connected with a supply 1 of air under pressure, so that secondary air supplied through the pipes r is delivered through the passages Z" into thecombustion chamber '0.

The bricks or blocks a are supportedin Iongitudinal rows on rods 6 passing through holesrnad'e in the said blocks, and the said rods are'silpported on two or more pairs of annular plates 0 and (Z. As appears more particulanlyfrom Fig. 1, the plates 0 are formed with radial slots k engaged by the parts or rods 5, while the plates (Z are provided w-i'th' slots la'disposed at acute angles to the circle on which the rods 6 are located. The annular plates 0 providedwith the radial s'lot's "112 are fixed toa stationary part for exampletothe jacket 99 asis indicated at 72 whiletheannular plates 03 aremovable in circuinf'erential direction Thus, bymoving the 1ates (lthe'rode Z) are moved in radial direction inwardlyor outwardly while being guided in" the slots 7t, and they carry along the bricks or blocks a thus increasing or reducing the cross-sectional area of the passages t5 Suitable means are provided for thusmoving the plates cl. To show what may bedone'the platesc and (Z areprovided with: arms and 0* formed at their top ends with internally screw-threaded eyes, and the said eyes: are engage'dbya bolt m provided at its ends with right hand andl'eft hand screw threads; To thebolt m a hand Wheel 6 is secured by meansof which the bolt is screwed within the arms a and 0 for shifting the rings 6 and c relatively to each other in circumferential direction.

. Thevblocks-arethus arranged in longitudinalrows; each row being carried by one of the'rods'and t'hese rowsare arranged side by side in" the enclosing waltof the chamber 1),

which, as illustrated in the drawings, is annular. The acket or casing 39 must be slotted as shown at d for the arm 0 to permit movement of the ring I).

In the modification shownin Figs. 3 and 4t, the end walls of the bricks or blocksa are disposed at acute angles to the circumference of the rings provided by the blocks, so that the secondary air is delivered through the passages t provided between adjacent blocks more or less in tangential direction. The blocks a are formed with square holes'engaged by longitudinal rods u of square crosssection. By turning the said rods about their longitudinal axes the area of the passages t is varied. The rods u are pivotally mounted in annular plates 0 0 provided at opposite ends of the combustion chamber and fixed to the end walls thereof. At one of their ends the parts or rods u have radial arms 7 fixed thereto, which arms are formed at their outer ends with slots 7 engaged by .pins to secured to an annular plate g. By shifting the said said annular plate in circumferential direc-' tion the arms 7 and roc s u are rocked about the longitudinal axes of the'said rods, so as to set the blocks a in different positions. For thus shifting the plate 9 similar means may be provided as have been described with reference to Figs. 1 and 2, which means comprise an internally screw-threaded eye 0 made integralwith the ring g, an internally screw-threaded and relatively fixed eye a integral with the ring 0 abolt m formed at its ends with screw threads of opposite pitch and engaging said screw-threaded eyes, and a hand wheel 6 fixed to said bolt.

In Figs. 3 and 4 the blocks are also arranged in longitudinal rows and thesev rows are placed side by side in the enclosing wall of the chamber 1;, which is shown as annular the same as in Figs. 1 and 2. Obviously the chamber or fireplace need not be circular in cross-section but it may be square or have some other form and the same arrangement of blocks may be followed in a wall that is arched or straight instead of annular.

Further-in Figs. 3 and 4 the rear ring 0 adjacent the chamber may be associated with arms f, a ring or plate 9, and the other means for shifting, the same as the ring 0 The general construction of the fire place shown in Figs. 3 and 4 is the same as that described with reference to Figs. 1 and 2, and

the same letters of reference have been used to indicate similar parts.

In both examples the air supplying chamber provided between the packet 10 and the circumferential wall of the combustion chamber is divided by a partition w, :0 into sectional chambers, and the pipe 1' is divided into two branches each connect-ed with one of said sectional chambers. If desired the sets of blocks a, a covered by the said sections may be provided with independent means for varying the area of the passages t, 25*, for which purpose the rods 6, u are divided at the middle and each sectional rod is provided with setting means of its own, and additional supporting bearing rings at the middle of the stood that my invention is not limited to the constructions shown in the drawings, and

that various changes may be made in the general arrangement of the apparatus and the construction of 1ts parts without departing from the invention.

chamber having itswall composed of annularly disposed longitudinal rows of blocks spaced from one another to provide passages for the admission of air, means connected with the longitudinal rows of blocks for setting the blocks of the rows in different po sitions for varying the area of the said passages, and means for supplying fuel to the combustion chamber.

3. A fire place, comprising EtCOilll'JLlSlllOfi chamber having its wall composed of sets of annularly. disposed longitudinal rows, of blocks spaced from one another to provide passages for the admission of air, means connected with adjacent rows of blocks for displacing the blocks in radial direction so to vary the cross-sectional area of the said.

cross-sectional area of said passages, and

means to supply fuel to said combustion chamber. i

5. A fire place, comprising. a combustion chamber having its wall composed of annularly disposed longitudinal rows of blocks spaced from each other to provide passages for the admission of air to the combustion chamber, rods supporting the adjacent rows vided with the angularly disposed of blocks, pairs of rings around said rows of blocks formed respectively with cooperating slots disposed angularly of each other and engaging said rods, means for shifting said rings relatively to each other in circumferential direction, and means for supplying fuel to said combustion chamber.

6. A fire place, comprising a combustion chamber having its wall composed of annularly disposed longitudinal rows of blocks spaced from each other to provide passages for the admission of air to the combustion chamber, rods supporting the adjacent rows of blocks, pairs of rings around said rows of blocks formed respectively with radial slots and slots disposed angularly of said radial slots, means to displace the rings proslots rela tively to the rings provided with radial slots, and means for supplying fuel to said combus tion chamber.

7. A fire place, comprising combustion chamber having its wall composed of annularly disposed longitudinal rows of blocks spaced from each other to provide passages for the admission of air to the combustion chamber, rods supporting the adjacent rows of blocks, pairs of rings around said rows of blocks formed respectively with cooperating slots disposed angularly of each other and engaging said rods, bolts formed at their ends with screw threads of opposite pitch engaging in corresponding screw-threaded portions of the rings of the said pairs, hand wheels on said bolts for turning the same, and means for supplying. fuel to said combustion chamber.

8. A fire place, comprising a combustion chamber having its wall composed of longitudinal rows of blocks having their end faces disposed angularly of the corresponding radii and spaced from one another to provide substantially tangential passages, means for supplying air through said passages, longitudinal rods fixed to the longitudinal rows of blocks, means to rock said rods and the blocks carried thereby for varying the distances between the end faces thereof, and means to supply air through the said passages.

9. A fire place, comprising a combustion chamber having its Wall composed of longitudinal rows of blocks having their end faces disposed angularly of the corresponding radii and spaced from one another to provide substantially tangential passages, means for supplying air through said passages, longitudinal rods fixed to the longitudinal rows of blocks, arms fixed one to each of said rods, a ring to which the free ends of said arms are jointed, means to shift said ring in circumferential direction, and means to sup ply air through said passages.

10. A fire place, comprising a combustion chamber having its Wall composed of longitudinal. rows of blocks having their end faces disposed angularly of the corresponding radii and spaced from one another to provide substantially tangential passages, means for supplying air through said passages, longitudinal rods fixed to the longitudinal rows of blocks, arms fixed one to each of said rods, a ring to Which the free ends of said arms are jointed, a screw screwing in a nut formed on said ring and engaging a relatively fixed part, a hand Wheel carried by said screw for turning the same, and means to supply fuel to said combustion chamber.

11. A fire place, comprising a combustion chamber having a cylindrical Wall composed of longitudinal rows of blocks spaced from one another to provide passages, a jacket around said cylindrical wall and divided transversely into sections, means to supply air through said jacket and passages, separate means for displacing the blocks covered by the sections of said jacket so as to vary the area of said passages, and means to supply fuel to said chamber.

12. A fire place, comprising a combustion chamber having a wall composed of longitudinal rows of blocks, longitudinal elements supporting the rows of blocks spacedfrom one another to provide passages for the ad mission of air into the chamber, said longitudinal elements extending through the blocks, and being supported for adjustment relatively to each other for adjusting the relative positions of the rows of blocks Whereby to vary the cross sectional area of the passages.

13. A fire place, comprising a combustion chamber having a wall composed of adjacent longitudinal rows of coacting blocks, longitudinal elements carrying the rows of blocks, the longitudinal elements extending through the blocks and at least one of the longitudinal elements being independently movable to adjust the row of blocks carried thereby so as to produce with the adjacent rows of blocks passage defining walls forming passages into the chamber for the admission of air thereinto.

14. A fire place, comprising a combustion chamber having a Wall composed of adjacent longitudinal rows of coacting blocks, longitudinal elements supporting the rows of blocks, the longitudinal elements extending through the blocks for the support of the same and being supported for adjustment relatively to each other for adjusting the relative positions of the rows of blocks so as to provide passages into the chamber for the admission of air thereinto, and a jacket forming an air space with the rows of blocks to receive air to be admitted through the passages into the chamber.

In testimony whereof I hereunto affix my signature.

EUGEN BURG. 

